Flotation process is mainly using gangue tin ore dressing plant and physical and chemical properties on the surface of the differences between kaolin to handle more impurity and white
degree of lower kaolin original tin ore dressing plants, remove the iron, titanium and carbon impurities, so as to realize the comprehensive utilization of low grade kaolin resources.
particles embedded with impurities such as iron, titanium tin ore dressing plant, and therefore must be the original tin ore dressing plant ground to a certain fineness, graded more belong
to clay-size particles mentioned in flotation process. Kaolinite commonly used flotation method for ultra fine particle flotation method, double fluid layer flotation method and selective
flocculation flotation method, etc. Flotation process can effectively improve whiteness of kaolin, but its drawback is that you need to add chemicals, causing higher production cost, and
easy to cause environmental pollution.
Chemical leaching: by sulfuric acid, hydrochloric acid, nitric acid leaching reagents such as dissolution kaolin of certain impurities, to remove impurities. This method can be used for low
grade kaolin clay to remove red iron
gold CIP machine tin ore dressing plant, brown iron tin tin
ore dressing
plants, tailing iron ore dressing plant, etc.
Chemical bleaching: bleaching may be able to will become can solute the impurity in the kaolin oxidation, then washing to remove, in order to enhance the whiteness of kaolin products.
Chemical bleaching costs are relatively high, however, is often used for further purification of kaolin after removing impurity refined tin ore dressing plants.
Roasting purification: can use impurities and chemical composition and reactivity of the differences between kaolin and magnetization roasting, high temperature roasting or chlorination
in the kaolinite impurities, carbon, sulfur and other impurities. The method can improve the chemical reactivity, calcined products greatly improve whiteness of kaolin, obtain the high
grade kaolin products. But roasting purification disadvantage is that the energy consumption is bigger, easy to cause environmental pollution. Only through a single technology is hard to
get high quality kaolin products, therefore, in actual production, suggest you tin ore dressing plant main choose qualified producers have chosen tin ore dressing plants, choose tin ore
dressing plant experiment was carried out, using a combination of a variety of process to improve the product quality of kaolin.
